Testing strtok: passed
Testing strstr: failed 1
Testing strrchr: failed 2
Testing strtoupper: passed
Testing strtolower: passed
Testing substr: passed
Testing rawurlencode: failed!
Testing rawurldecode: passed
Testing urlencode: passed
Testing urldecode: passed
Testing quotemeta: passed
Testing ufirst: passed
Testing strtr: passed
Testing addslashes: passed
Testing stripslashes: passed
Testing uniqid: passed